San Leandro Weather in September

With daytime temperatures of 24°C (75°F) and nighttime lows of 13°C (55°F), September in San Leandro brings high temperatures during the day. The excellent weather makes it an appealing time to visit.

Rainfall in San Leandro in September

Historically, the month has about a single day of rain, averaging 4 mm (0.2 in) in total. If rain does fall, it tends to be very light and barely worth getting out an umbrella for.

Temperature in San Leandro in September

The excellent temperature in San Leandro in September makes it a solid month to visit, with 24°C (75°F) during the day and 13°C (55°F) at night. September is known for being in the summer season. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights drop to around 13°C (55°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable. On average, it sees the highest temps of the year.

Sunshine in San Leandro in September

Expect a lot of sunshine this month, with about 270 hours of sun. These sunny conditions add to the overall experience.

Wind Speed in San Leandro in September

September has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.

Average water temperature in September

The water is 14°C (57°F) this month — cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit San Leandro.

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• January
• February
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• October
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For a detailed overview over the year and the best time to visit the United States of America, check out our San Leandro's climate page.

San Leandro Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 24°C (75°F)  

Water Temperature 14°C (57°F) *  

Chance of Rain 3%  

Precipitation 4 mm (0.2 in)  

Rainy days a single day  

Humidity 73% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 270 hours *  

Percentage Sunshine 73% *  

* Data from: San Francisco, the United States of America (23 KM, 14 Miles).

What to Wear in San Leandro in September

For San Leandro in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Almost no rain is expected, so no need to bring rain gear. The water temperature sits at about 14°C (57°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in San Leandro in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

10/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our San Leandro's climate page.

More climate data for San Leandro

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full San Leandro climate overview or explore weather in the United States of America.